Optical fiber slip ring for security camera

Abstract

The utility model relates to the technical field of optical fiber communication, and discloses an optical fiber slip ring for a security camera, which comprises a shell, a stator component and a rotor component, optical signals are transmitted between the stator component and the rotor component, the stator component is fixedly connected with the shell, a contact part is arranged in an inner cavity of the shell, and the rotor component is fixedly connected with the stator component. The rotor part is inserted in the inner cavity of the contact part in a sliding mode, and the outer surface of the section, located in the inner cavity of the contact part, of the rotor part abuts against the surface of the contact part all the time. According to the utility model, the rotation of the rotor part in the optical fiber slip ring adopts a sliding friction structure, the overall structure is simple, the assembly mode is simple and convenient, the stability of a molded product after long-time operation is guaranteed, and the production and manufacturing cost and the later maintenance cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber communication, in particular to an optical fiber slip ring for a security camera. Background Art

[0002] Fiber optic slip rings are a type of optoelectronic slip ring, also known as optoelectronic combined slip rings, optoelectronic rotary joints, or optoelectronic hybrid rotary connectors. Typically, a fiber optic slip ring is installed at the center of a through-hole conductive slip ring. The fiber optic slip ring and conductive slip ring rotate coaxially and synchronously, enabling the transmission of high-definition video signals.

[0003] Existing fiber optic slip ring products usually use rolling bearings to realize the rotation of the rotor part. The bearing installation structure is precise. In addition, due to the size limitation of the bearing, the product structure is complex and the size is generally large. After long-term operation, the stability is easily reduced, and the subsequent replacement is relatively cumbersome, which increases the cost of manufacturing the entire fiber optic slip ring and the subsequent maintenance and replacement. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a fiber optic slip ring for security cameras, which solves the problems of the existing bearing-type fiber optic slip ring, such as complex overall structure and limited size, high manufacturing and subsequent maintenance costs, and long-term operation stability that needs to be improved.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A fiber optic slip ring for a security camera includes a housing, a stator component, and a rotor component. An optical signal is transmitted between the stator component and the rotor component. The stator component is fixedly connected to the housing. A contact portion is provided in the inner cavity of the housing. The rotor component is slidably inserted into the inner cavity of the contact portion. During the rotation of the rotor component in the inner cavity of the contact portion, the coaxiality of the rotor component with the stator component is always within the standard tolerance range.

[0009] Preferably, the stator component includes a stator insert and a stator tail handle, one end of the stator insert is crimped and fixed in the inner cavity of the stator tail handle, and the other end is inserted into the inner cavity of the contact part, and the stator tail handle is threadedly connected to the shell.

[0010] Preferably, the rotor component includes a rotor core and a rotor tail handle, one end of the rotor core and the stator core are crimped and fixed in the inner cavity of the rotor tail handle, and the other end is inserted into the inner cavity of the contact part, one end of the outer shell is fixedly connected to a stop sleeve, one end of the rotor tail handle passes through the stop sleeve, and the stop sleeve limits the movement of the rotor tail handle along its axial direction.

[0011] Preferably, the inner cavities of the stator ferrule and the rotor ferrule are both fixedly connected with a collimating lens and an optical fiber, and the optical signal of the optical fiber is transmitted to the other optical fiber after passing through the collimating lens.

[0012] Preferably, the collimating lens and the optical fiber are bonded to the inner cavities of the stator ferrule and the rotor ferrule by glue.

[0013] Preferably, the optical fiber is provided with an optical cable sheath on the outside of the stator tail handle and the rotor tail handle.

[0014] Preferably, the contact portion is a sleeve fixedly arranged in the inner cavity of the shell, and the sleeve, the stator insert and the rotor insert are all made of ceramic material.

[0015] Preferably, the contact portion is a ceramic layer provided on the inner wall of the shell, and the stator insert and the rotor insert are both made of ceramic material.

[0016] (3) Beneficial effects

[0017] The utility model has the following beneficial effects:

[0018] The fiber optic slip ring for security cameras has a contact portion arranged in the inner cavity of the shell, and sliding friction exists between the contact portion and the rotor component, so that the rotation of the rotor component in the entire fiber optic slip ring does not require the help of bearings, greatly reducing the structure of the components and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the half-section structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the component disassembly structure of the utility model.

[0022] In the figure: 1. stator ferrule; 2. rotor ferrule; 3. collimating lens; 4. optical fiber; 5. stator tail handle; 6. rotor tail handle; 7. optical cable sheath; 8. retaining sleeve; 9. outer casing; 10. casing. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 The utility model provides a technical solution: an optical fiber 4 slip ring for a security camera, comprising a housing 9, a stator component and a rotor component. An optical signal is transmitted between the stator component and the rotor component. The stator component is fixedly connected to the housing 9. A contact portion is provided in the inner cavity of the housing 9. The rotor component is slidably inserted into the inner cavity of the contact portion. During the rotation of the rotor component in the inner cavity of the contact portion, the coaxiality of the rotor component with the stator component is always within the standard tolerance range.

[0025] In the present invention, a contact portion is arranged in the inner cavity of the shell 9, and sliding friction exists between the contact portion and the rotor component, so that the rotation of the rotor component in the entire optical fiber 4 slip ring does not require the help of a bearing, which greatly reduces the structure of the components and reduces the production cost.

[0026] Reference Figure 2 As shown, in this embodiment, the stator assembly includes a stator ferrule 1 and a stator shank 5. One end of the stator ferrule 1 is crimped and fixed to the inner cavity of the stator shank 5, while the other end is inserted into the inner cavity of the contact portion. The stator shank 5 is threadedly connected to the housing 9. During the assembly process, the stator ferrule 1 and the stator shank 5 can be quickly and conveniently assembled through crimping. The stator shank 5 can then be quickly installed on the housing 9 through a threaded connection. This also facilitates the complete disassembly and replacement of the stator assembly during routine maintenance.

[0027] Reference Figure 1 and 2 As shown, in this embodiment, the rotor assembly includes a rotor insert 2 and a rotor stem 6. One end of the rotor insert 2 and the stator insert 1 are crimped and fixed to the inner cavity of the rotor stem 6, while the other end is inserted into the inner cavity of the contact portion. A stopper 8 is fixedly connected to one end of the housing 9, and one end of the rotor stem 6 extends through the stopper 8, which restricts the axial movement of the rotor stem 6. The stopper 8 serves to isolate and protect the rotor assembly during installation and connection with the housing 9 during daily use. It also limits the axial displacement of the rotor assembly, thereby ensuring stable rotation of the rotor insert 2 within the contact portion.

[0028] In this embodiment, the inner cavities of the stator ferrule 1 and the rotor ferrule 2 are both fixedly connected with a collimating lens 3 and an optical fiber 4 , and the optical signal of the optical fiber 4 is transmitted to another optical fiber 4 after passing through the collimating lens 3 .

[0029] In this embodiment, the collimating lens 3 and the optical fiber 4 are both bonded to the inner cavities of the stator ferrule 1 and the rotor ferrule 2 by glue.

[0030] In this embodiment, the optical fiber 4 is provided with a cable sheath 7 outside the stator tail handle 5 and the rotor tail handle 6. The provision of the cable sheath 7 makes the entire optical fiber 4 slip ring easy to install. The product can be quickly installed by clamping the cable sheath 7 at both ends.

[0031] In this embodiment, the contact portion is a sleeve 10 fixedly mounted within the inner cavity of the housing 9. The sleeve 10, stator ferrule 1, and rotor ferrule 2 are all made of ceramic. The sliding friction between the ceramic rotor ferrule 2 and the ceramic sleeve simplifies the structure, enabling rapid product installation and facilitating rapid production. Furthermore, the low friction and wear resistance of the ceramics ensure the long-term operational stability of the entire optical fiber 4 slip ring.

[0032] In this embodiment, the contact portion is a ceramic layer formed on the inner wall of the housing 9. Both the stator ferrule 1 and the rotor ferrule 2 are made of ceramic. By using this ceramic layer as the contact portion, the processing steps required for the entire optical fiber 4 slip ring are significantly reduced. Simply placing the ceramic layer on the housing 9 allows for the rotor ferrule 2 to achieve a flexible connection between the rotor components.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber optic slip ring for a security camera, comprising a housing, a stator component, and a rotor component, wherein optical signals are transmitted between the stator component and the rotor component, characterized in that: The stator component is fixedly connected to the shell, a contact portion is provided in the inner cavity of the shell, the rotor component is slidably inserted into the inner cavity of the contact portion, and the coaxiality of the rotor component with the stator component is always within the standard tolerance range during the rotation of the inner cavity of the contact portion.

2. The optical fiber slip ring for a security camera according to claim 1, characterized in that: The stator component includes a stator core and a stator tail handle. One end of the stator core is crimped and fixed to the inner cavity of the stator tail handle, and the other end is inserted into the inner cavity of the contact part. The stator tail handle is threadedly connected to the shell.

3. The optical fiber slip ring for a security camera according to claim 2, characterized in that: The rotor component includes a rotor core and a rotor tail handle. One end of the rotor core and the stator core is crimped and fixed to the inner cavity of the rotor tail handle, and the other end is inserted into the inner cavity of the contact part. One end of the outer shell is fixedly connected to a stop sleeve, and one end of the rotor tail handle passes through the stop sleeve. The stop sleeve limits the movement of the rotor tail handle along its axial direction.

4. The optical fiber slip ring for a security camera according to claim 3, characterized in that: The inner cavities of the stator ferrule and the rotor ferrule are both fixedly connected with a collimating lens and an optical fiber, and the optical signal of the optical fiber is transmitted to the other optical fiber after passing through the collimating lens.

5. The optical fiber slip ring for a security camera according to claim 4, characterized in that: The collimating lens and the optical fiber are both bonded to the inner cavities of the stator ferrule and the rotor ferrule by glue.

6. The optical fiber slip ring for a security camera according to claim 5, characterized in that: The optical fiber is provided with an optical cable sheath outside the stator tail handle and the rotor tail handle.

7. The optical fiber slip ring for a security camera according to any one of claims 3 to 5, characterized in that: The contact portion is a sleeve fixedly arranged in the inner cavity of the shell, and the sleeve, the stator insert and the rotor insert are all made of ceramic material.

8. The optical fiber slip ring for a security camera according to any one of claims 3 to 5, characterized in that: The contact portion is a ceramic layer arranged on the inner wall of the shell, and the stator insert and the rotor insert are both made of ceramic material.

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